Nitrammite

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Nitrammite
Mineralogical name	Nitrammite, Gwihabaite
Chemical name	Ammonium Nitrate
Trivial name
Chemical formula	NH4NO3
Other forms
Crystal system	orthorhombic
Crystal structure
Deliquescence humidity 20°C	65% (20°C), 61.8% (25°C)
Solubility (g/l) at 20°C	1787 g/l
Density (g/cm³)	1.72 g/cm3
Molar volume	46.49 cm3/mol
Molar weight	80.043 g/mol
Transparency	transparent
Cleavage
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices	nx = 1.411-1.416 ny = 1.605-1.623 nz = 1.630-1.649
Birefringence	Δ = 0.219-0.233
Optical Orientation	negative
Pleochroism
Dispersion
Used Literature
[Robie.etal:1978]Title: Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar pressure and higher temperatures Author: Robie R.A., Hemingway B.S.; Fisher J.A.

Literature

[Robie.etal:1978]

Robie R.A., Hemingway B.S.; Fisher J.A. (1978): Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar pressure and higher temperatures. In: U.S. Geol. Surv. Bull, 1452 ()

A phase is a physically distinctive form of matter and is characterized by having relatively uniform chemical and physical properties.